Phenom II X3 700e vs Pentium G645
Phenom II X3 700e
Pentium G645
Performance Spectrum - CPU
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money. The Phenom II X3 700e is positioned at rank 972 and the Pentium G645 is on rank 838, so the Pentium G645 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Phenom II X3 700e
Performance Per Dollar Pentium G645
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Phenom II X3 700e | Pentium G645 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($40) | ✅ More affordable ($15) |
| Longevity | 🛑 Legacy (Heka (2009−2010) / 45 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Phenom II X3 700e | Pentium G645 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+166%) |
| Upfront Cost | ⚠️ Higher cost ($40) | ✅ More affordable ($15) |
Performance Check
To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.
Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.
Technical Specifications
Side-by-side comparison of Phenom II X3 700e and Pentium G645
Phenom II X3 700e
The Phenom II X3 700e is manufactured by AMD. It was released in 2009-01-01. It is based on the Heka (2009−2010) architecture. It features 3 cores and 3 threads. Base frequency is 2.4 GHz, with boost up to 2.4 GHz. L3 cache: 6 MB (total). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,451 points. Launch price was $149.
Pentium G645
The Pentium G645 is manufactured by Intel. It was released in 2 September 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.9 GHz, with boost up to 2.9 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,450 points. Launch price was $80.
Processing Power
The Phenom II X3 700e packs 3 cores / 3 threads, while the Pentium G645 offers 2 cores / 2 threads — the Phenom II X3 700e has 1 more core. Boost clocks reach 2.4 GHz on the Phenom II X3 700e versus 2.9 GHz on the Pentium G645 — a 18.9% clock advantage for the Pentium G645 (base: 2.4 GHz vs 2.9 GHz). The Phenom II X3 700e uses the Heka (2009−2010) architecture (45 nm), while the Pentium G645 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Phenom II X3 700e scores 1,451 against the Pentium G645's 1,450 — a 0.1% lead for the Phenom II X3 700e. L3 cache: 6 MB (total) on the Phenom II X3 700e vs 3 MB (total) on the Pentium G645.
| Feature | Phenom II X3 700e | Pentium G645 |
|---|---|---|
| Cores / Threads | 3 / 3+50% | 2 / 2 |
| Boost Clock | 2.4 GHz | 2.9 GHz+21% |
| Base Clock | 2.4 GHz | 2.9 GHz+21% |
| L3 Cache | 6 MB (total)+100% | 3 MB (total) |
| L2 Cache | 512 kB (per core)+100% | 256 kB (per core) |
| Process | 45 nm | 32 nm-29% |
| Architecture | Heka (2009−2010) | Sandy Bridge (2011−2013) |
| PassMark | 1,451 | 1,450 |
| Geekbench 6 Single | 250 | — |
| Geekbench 6 Multi | 650 | — |
Memory & Platform
The Phenom II X3 700e uses the AM3 socket (PCIe 2.0), while the Pentium G645 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Phenom II X3 700e | Pentium G645 |
|---|---|---|
| Socket | AM3 | LGA1155 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3-1333 | — |
| Max RAM Capacity | 16 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 16 | — |
Advanced Features
Virtualization: AMD-V (Phenom II X3 700e) / not specified (Pentium G645). Primary use case: Phenom II X3 700e targets Legacy Desktop.
| Feature | Phenom II X3 700e | Pentium G645 |
|---|---|---|
| Integrated GPU | No | — |
| IGPU Model | None | — |
| Unlocked | Yes | — |
| AVX-512 | No | — |
| Virtualization | AMD-V | — |
| Target Use | Legacy Desktop | — |
Value Analysis
The Phenom II X3 700e launched at $125 MSRP, while the Pentium G645 debuted at $80. At current prices ($40 vs $15), the Pentium G645 is $25 cheaper. In terms of value (PassMark points per dollar), the Phenom II X3 700e delivers 36.3 pts/$ vs 96.7 pts/$ for the Pentium G645 — making the Pentium G645 the 90.9% better value option.
| Feature | Phenom II X3 700e | Pentium G645 |
|---|---|---|
| MSRP | $125 | $80-36% |
| Avg Price (30d) | $40 | $15-63% |
| Performance per Dollar | 36.3 | 96.7+166% |
| Release Date | 2009 | 2012 |
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